However, the DNA that makes up chromosomes becomes more tightly packed during cell division and is then visible under a microscope. Most of what researchers know about chromosomes was learned by observing chromosomes during cell division.
From a career standpoint, the term âbiologistâ can have many meanings. As a biologist, you might study plants, animals, people or a particular environment. You could work in marine biology, wildlife biology or biochemistry, travel to the Brazilian rain forest to study biological compounds or work in a clinical laboratory as a microbiologist.
5 Steps: Experience and Education Needed to Become a Marine Biologist Rachael Many of our students returning from Costa Rica, the Galapagos Islands, or Mexico, working side-by-side with field researchers, come home with a new goal in life: become a marine biologist. 1  Pursuing a career in marine biology or oceanography can be a challenging road to travel, but youâll be hard-pressed to find a marine biologist with regrets. Hopefully the following tips will help you navigate the multifarious paths to becoming a marine biologist: â 1 Get Your Feet Wet!â Most conservation researchers â marine or otherwise â are driven to pursue their career out of a downright love of and curiosity about the natural world.